How many homes can the world’s largest offshore wind farm power in an hour?

Factful math: Grade 4th-6th

Math skills: Multiplication

Related Environmental issues: renewable energy

The world’s largest offshore wind farm Hornsea 2 in the UK has 165 wind turbines.

A single rotation of a wind turbine takes 6 seconds and generates energy to power a home for a day. How many homes can the Hornsea 2 wind farm power in an hour of operation? 

  1. 1,650 homes
  2. 9,900 homes
  3. 99,000 homes

ANSWER  3

1 hours = 3600 seconds

A wind turbine rotates [3600/6=600] times in an hour.

A wind turbine generates energy to power 600 homes in an hour.

There are 165 wind turbines in the Hornsea 2 wind farm, so the wind farm can generate energy to power [600 x 165 =  99,000] homes in an hour.

Source: BBC. Hornsea 2: North Sea wind farm claims title of world’s largest [https://www.bbc.com/news/science-environment-62731923].

 

how many times more Tesla Model Y were sold than Volkswagen ID.4?

Factful math: Grade 3rd-5th

Math skills: Bar graphs

Related Environmental issues: EVs

More than 172 thousand units of Tesla Model Y were sold in the U.S. in 2021.

About how many times more Tesla Model Ys were sold than the 5th bestselling EVs in 2021?

  1. 5
  2. 10
  3. 20


ANSWER  2

170 / 20 = 8.5 = about 10

Source: Car and driver, 2022. 12 Bestselling Electric Vehicles of 2021. 

 


FACTFUL ENVIRONMENTAL MATH PROBLEMS (2020)

ABOUT THIS BOOK

The objective of Factful Environmental Math Problems is to cultivate our young people’s skills to analyze and evaluate fact-based data for understanding our world, while improving their math skills and critical thinking skills.

With the rise of the Internet and new technology, building skills to analyze and evaluate fact-based data becomes increasingly important for our young people to prepare for this rapidly changing world. These skills minimize their chances of being brainwashed by false information and making uninformed decisions and ultimately help develop their critical thinking skills. (Read more)

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Published: March 26, 2020

Price: $6.25